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Conductive paste and die bonding method

机译:导电胶与芯片的粘接方法

摘要

Provided are: a conductive paste in which sinterability of silver particles the conductive paste can be easily controlled by using silver particles having predetermined crystal transformation characteristics defined by an XRD analysis, and after a sintering treatment, excellent electrical conductivity and thermal conductivity can be stably obtained; and a die bonding method using the conductive paste.;Disclosed is a conductive paste which includes silver particles having a volume average particle size of 0.1 to 30 μm as a sinterable conductive material, and a dispersing medium for making a paste-like form, and in which when the integrated intensity of the peak at 2θ=38°±0.2° in the X-ray diffraction chart obtainable by an XRD analysis before a sintering treatment of the silver particles is designated as S1, and the integrated intensity of the peak at 2θ=38°±0.2° in the X-ray diffraction chart obtainable by an XRD analysis after a sintering treatment (250° C., 60 minutes) of the silver particles is designated as S2, the value of S2/S1 is adjusted to a value within the range of 0.2 to 0.8.
机译:提供一种导电糊剂,其中通过使用具有通过XRD分析确定的预定的晶体转变特性的银颗粒,可以容易地控制该导电糊剂的银颗粒,并且在烧结处理之后,可以稳定地获得优异的导电性和导热性。 ;本发明公开了一种导电糊,其包括体积平均粒径为0.1至30μm的银颗粒作为可烧结的导电材料,以及用于形成糊状的分散介质,和其中,在将银粒子的烧结处理之前通过XRD分析得到的X射线衍射图中的2θ= 38°±0.2°处的峰的积分强度设为S1,并将该峰的积分强度设为S1。在将银粒子的烧结处理(250℃,60分钟)后通过XRD分析得到的X射线衍射图中的2θ= 38°±0.2°设为S2,将S2 / S1的值调整为值在0.2到0.8之间。

著录项

  • 公开/公告号US10615144B2

    专利类型

  • 公开/公告日2020-04-07

    原文格式PDF

  • 申请/专利权人 KAKEN TECH CO. LTD.;

    申请/专利号US201715729071

  • 发明设计人 SHIGEO HORI;HIROHIKO FURUI;AKIRA FUJITA;

    申请日2017-10-10

  • 分类号B23K1;H01L23;H01B1/22;B22F1;B23K35/02;B23K31/12;B23K35/30;B23K35/36;B22F9/24;

  • 国家 US

  • 入库时间 2022-08-21 11:26:21

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